Question About Nutrient Burn

[Danielsaaan]

Theres a P deficiency somewhat and he may have watered close to taking that pic. But better job then 90% of new growers have done.

The more I look at the plants, the more I think deficiency is more of an issue than over feeding. Like you said, they’re showing signs of P deficiency…the last time I checked the runoff, it was 6.0 PH. When I watered last night, water PH was 6.5. Do you think I should water/feed at higher PH at this time? Thanks again!

 

[Couch_Lock]

What is your grow medium? salt based nutes or organic?

Excess calcium in soil= if the soil is alkaline, excess calcium can bind to phosphorus preventing it from being taken up by plants. Cation exchange capacity - the more clay and organic matter in soil, the more cationsand thus calcium it can hold. Other cations- excess levels of other cationscan prevent plants from taking up calcium.

 

[Danielsaaan]

What is your grow medium? salt based nutes or organic?

Excess calcium in soil= if the soil is alkaline, excess calcium can bind to phosphorus preventing it from being taken up by plants. Cation exchange capacity - the more clay and organic matter in soil, the more cationsand thus calcium it can hold. Other cations- excess levels of other cationscan prevent plants from taking up calcium.

I’m in OF and for my first grow, I’m using the trio with Kelp/Beastie Bloomz at appropriate times. I have a grow journal in the beginning growers section if you’d like to check it out. Appreciate it!

 

[Couch_Lock]

Will do, Dan. If that plant was mine I'd flush it with a gallon of 6.2 Ph'd water........If Ph is nearing 7.0 it will lockout P.

 

[Danielsaaan]

Will do, Dan. If that plant was mine I'd flush it with a gallon of 6.2 Ph'd water........If Ph is nearing 7.0 it will lockout P.

Interesting. I was worried about too low of a PH if anything. I will water til runoff next time I water and check the runoff PH and go from there I guess! Thank you

 

[Danielsaaan]

I have another related question for you guys. Which do you think is worse for the plant — nutrient burn, or nutrient deficiency? And why?
Thank you!

 

[MIAutomatic]

Burn without a question, I think actual deficiency’s are much rarer that most people think. Usually issues are from lockout due to imbalanced nutrients, not an actual deficiency.

Macro nutrient deficiency comes on pretty slow and are fairly easy to diagnose and correct. Micronutrient deficiency are harder to diagnose, but true deficiency’s (not just from lockout) are pretty rare. Usually the worst thing a macronutrient deficiency will cause is a reduction in vigor and yield, but quality is mostly unaffected. Nutrient burn causes more lasting harm to yield and quality than most deficiency usually does. This is all just my opinion of course.

 

[Danielsaaan]

Burn without a question, I think actual deficiency’s are much rarer that most people think. Usually issues are from lockout due to imbalanced nutrients, not an actual deficiency.

Macro nutrient deficiency comes on pretty slow and are fairly easy to diagnose and correct. Micronutrient deficiency are harder to diagnose, but true deficiency’s (not just from lockout) are pretty rare. Usually the worst thing a macronutrient deficiency will cause is a reduction in vigor and yield, but quality is mostly unaffected. Nutrient burn causes more lasting harm to yield and quality than most deficiency usually does. This is all just my opinion of course.

Makes sense though. Thank you for the reply!